Car-roof.



F. A. LESTER.

CAR ROOF.

APPLICATION HLED JULY 30,1914.

2 SHEETS-SHEET 1.

g a g s {IIIIIIIIIII/ wrmzss Es: uwuron COLUMB llllll awn C0,, WASHIN c.

F. A. LESTER.

7 CAR ROOF.

APPUCATIOH FILED JULY 30, I914.

1,150,133. Patented Aug. 17, 1915.

2 SHEETS-SHEET 2.

WITNESSES:

I TED STATES PATENT OFFICE.

nnnnnnrcx a. LESTER, on CHICAGO, innnvors, Assioivon ro onloneo srAnnAnD EQUIPMENT COMPANY, or CHICAGO, ILLINOIS, A CORPORATIONOE MAINE.

can-noon.

To all whom it may 6072 061% I Be it known," that I, FREDERICK A.LESTER, a citizen of the United States, and a resident of Chicago, inthe county of Cook and State of Illinois, have invented certain new anduseful Improvements in Car-Roofs,-of which a the following is aspecification, reference being had to the drawings forming a parthereof.

My invention relates generally to roofs, and has reference --moreparticularly :to improvements in a double board roof adapted for use inconnection with railway freight I cars.

- roof whereby to prevent checking or splitting thereof, and moreparticularly of the top surface of-theroof boards forming the outercovering. A further object is the pro- 7 vision of aflexible innercovering in the'air space conformed and adapted to positively conductleakageaway from the roof and discharge the same at the cave, andwherein the area of discharge apertureat, the cave is restricted so asto overcome any likelihood of I leakage or rain beingdriven back intothe larger ventilating space existing between the inner. and outercoverings.

My invention further contemplates generally, the production of awater-tight car roof which is of a simple,cheap and durable C0111struction especially adapted to withstand hard usage. a

These, together' with such other objects as may hereinafter appear, orare incident to my invention, I obtain by means of a construction whichis illustrated in preferred form in thefaccompanying drawings, wherein V1 7 3 Figure 1 is :a perspective view of a portion of a freightcarillustrating the application of my improved roofing thereto, partsofgtheouter covering being broken away to better disclose the, inventionSpecification of Letters ZEatent.

Application filed July 30, 1914. Serial No. 54,030.

Patented Aug; 17, 1915;

Figures 2 and ,3 ,,are enlarged sections taken respectively along thelines I'I-II and IIIIII of Figure 1. c-

7 Figures 4 and 5,are views in, perspective showing the relation of theroofmembers at the ridge and eaves respectively. I. v Referring to thedrawings, the numeral 6 indicates the longitudinal ridge member'of theroof supported intermediate its ends by carlines f7, whichextend'transversely between the sideplatesS, siding 19,1and fascia? 10,in a manner well known and common tothis art, a 1 I I Incarrying out myinvention, I provide the inner sheathing 11 which is supponted'by thecarlines and extends continuously across the roof to haveits bottomedges terminate at ornear the fasciae l0 and its top edges received. ina cutaway portion at each side of the ridge member 6, there being a{clear- The numeral 12 indicates a covering waterproof flexiblecharacter preferably in the form of corrugated tar :paper, which, is;laid .upon the sheathing 11 in such a manner that the depressions orgroovesl? thereof rest on its upper surface and extendjina jdi-' rectiontransversely of the roof from within the clearance at the ridge to theeaveto serve asa water conducting channel in the event ofleakage pastthe outer roof board cover ing 14. Positioned at intervals on flattenedportions 15 of the corrugated paper covering 12 are transverse fillerblocks 16 which may extend from ridge to eave and are preferably ofaheight correspondingto thatofthe ridges 13 and interposed between theblocks 16 and the outer roof covering 14: are longitudinal nailingstrips 17 secured torand extending cross-wise of the blocks 16 and towhich the outer roof board covering 14 may be attached. i

A nailingstrip 17 is disposed at xeachof the eaves to extendlengthwiseof the car and laterally of the grooves 13, and as the end '70ance-between the shoulder 6 of the ridgeportions 16 of the transversefiller blocks 16 istantially coincides with the planeof the ridges 13With the parts positioned as/ thus fa'r describ'ed,vitiwillvbeiapparentthat:

' an adequate airfor vventilatingspace A is 110 r age being-driven. hackinto thespacetby the action oi'idrivingwind, while at the same i formedbetween the, sheathing l1 and the outer roofboard covering 14 bytheinterpositioniof the'blocks 16 and strips 17 and t that the areaofdi'sch'arge aperture B at th'e eave isefiectually restricted orlessenedwby V a the eaves strip, 17iwhereby' to prevent drain Idischargeat the cave, intervaled filler blocks engaging L portions of theintermediate v time permitting a free"'discharge-of the drainage overthe side of the car.

1 Furtherniore, {thearrangement at the cave is such that'thegrboves 1'3-vir'tually act as f a series of independent water conducting channelscontinuedthroughout the length 1 of the can-since only at'th eaveisencountered the fulleiifect of Wind orrain,.which,

' whenthecarisin motion, 1s prevented from movingin aniangulardirectionthrough the i aperture B- andjinto the air sparceA. As to the functionof the latter, it is well known .25

that aindried lumber is becoming more and more "diflic'ult to obtain andthen only 'atfa prohibitive cost-so far as car roofs are con cerned;and' this space serves 'to prevent checking jor' splitting. ofthef'rooL-which is a common occurrence in 'car roofs *which use kilnidriedlumber, and also materiall redujcesany tendency -of -the corrugatetar papercovering: from: sticking to the inner zr'f'sheathing. orotherroof members, which Wduld ageous in theevgmfof expansion: or contraction1 of" the roofing membersand would to a greater for lesser extent. havea tendency to eifectits'integrity' as a; flexible andwater-tightmember.' The 7 H4O aperture B is further "protected by an eaves c'apiorstri'p' '18 carried by the outer board coveringflt-to overhang at theeaves' "*The outer froof covering is preferably composed of a series ofspaced roofing strips '19 and interposedbattens'20, which arrange-- I'ment' is described and claimed in my -cQo-' pending application -forLetters Patent, Serial N11mber 854,029.

1 At he-ridge,-'the meeting edges tithe outer-roof covering 14 aresupported by the ridge p'ole 6 and covered in byproviding the usual-runboard ZIPAny lakiige past the joint atth ispoint'is received andconducted 7 "away the "intermediate covering 13,

which, as previously indicated has its top 7 edge received "in the'cut-away portion ot the -ridge, as shown in Figure 4. 7 1 Fromthejoregoing, the essential features and elements offthe constructiontogether with its simplicity' 'and other advantages thereof, will"beread ily apparent to 1 S killedinthe art; I

I illustrated its use; what I 1 Having thus described; *y fiat-ar maclaim *as new and V sheathing extending fromridge to eave'and'l a th vmgan an" spa e hereb w ea aniutenspace to conductlealrage therefrom forits inijsaid space 'on the sheathing and formed strip located: at I the;eavej interrne'diate theo""'' stantially "in the same planeasthat'of-thel whereby to provide 1 a series'fbfwaterf'con ridges andgroovesfor fconducting leakagej away from the space for dischargeat'the;

,the{ ridges and blocks; to" form;

desire to secure by Letters Patent, is theffollowings 1. .In acompoundcar jroofi and incomjbi t o a i er ofwifihe 'a d an mediate corrugatedii'abr'ie1 c o v eri I 1 'gjlaidoiisaid nner 1 sheathlng jail Cl"disposed "1n sal 7 5 ering forretaining the latterin position'on} thesheathingand a longitudinally disposed; stripinterposed at the eavebetween the fille blocks and the outer }-coveringand'-exte ndinglaterallyan'dfiadj acently Zo er T the corrugations-Of the intermediatecovering to'fo'rina restricteddischarflge aperture at-1- they-eavewherein the water-conducting corrugations Y are termin 11ylocated,fsubstantially as i for the purpose 'setforth; 7 2.111 ac'arroof, the. combinationjof-a inner sheathing supported at the eave andanouter roof L covering havirifgf"aIfair; or f ventilating spaceextending-'therebetween to the 'eave,-an1intermediatecovering'fdisposed- 9'0; 1

throughout with alternate, ridges-{andi grooves for conducting leakage"to thei eave,-- filler hlocksfdispo'sed at intervals toien age.flattened portions of.v the"'inter!nediate 'covf-T '95 ering, forretaining the latteraim-position, onthe-inner sheathing, and a-longitudin'al ler blocks and said' outer covering and disposed withreferencethereto-and subrioof top line of; thei 'ridges to form are'stric'tfed discharge aperture at the; gav the' lOwe edge" ofthe;intermediatev covering being tef minally located in 5 said frestr-icted aperturejlo ducting 5 channels extending continuouslbetween; the filler blocks, "substantially a and forthepurpos'esset'forthb v a 1 3. Ina double'boar'd car-roof, the combi'fnation of'an inner sheathing andan 'outer', roof covering havingan airspace'extendi n therethrough to the" cave, 5 an {intermediate flexiblewaterproof cove ing? la'id on said I inner sheathing and} formed 'withflalternate i1 1 ea've, l intervaled filler blocks i engaging fflattened 'portionsof the intermediate icofverin'g and offlaheight'appro'zrimating hater the 12 ridges; and a: longitudinal nailingstrip ine terposedbetween :jith '-:fiJle1i:{b1ocks "=and the] outercoveringand extending laterally "lover" U v restricted}. dischargeaperture atgthefjeave tionterminally f located saidaperture j therebyproviding intermediate tlie fille blocks aseries of water-conductingchannels signed my name in the presence of the two and wherein the topline of the ridges subsubscribed witnesses. stantially coincides withthe plane of the inner face of the strip and the bottom line FREDERICKLESTER" of the grooves with that of the inner face Witnesses:

of the sheathing. r W. HERBERT F OWKES,

In testimony whereof, I have hereunto FRANK JAGER.

copies of this patent may be obtained for five cents each, byaddressingthe Commissioner of Patents, Washington, D. G.

